The DTH is the abbreviation of Down The Hole and sometimes it is also called RAB in some markets, then the RAB is short for Rotary Air Blasting
SINODRILLS GSE DHD DTH Hammers
DTH (down-the-hole) drilling involves a drilling hammer at the bottom of a drill string, the hammer is powered by compressed air transmitted via drilling rod to drive piston and produce impact power, which is then delivered into rocks for drilling and crushing. DTH drilling can be applied in mining, quarrying, water well drilling, foundation piling, etc. DTH hammer uses compressed air to produce impact power, thus to drive drill bits to crush rocks.
Features
• Premium material, fine CNC and heat-treatment manufacturing processes and optimized design;
• Good stability and reliability;
• High impact frequency;
• Lowered compressed air consumption;
• Long lifespan
Applications
Mining, quarrying, water well drilling, geothermal well drilling, foundation piling, etc.
Structure
Net Weight
22.62 kgs
Rec. Hole Size
90 mm-105 mm
01 - Top Sub
02 - O Ring
03 - Check Valve
04 - Spring
05 - Steel Washer
06 - Rigid Valve
07 - O Ring
08 - Internal Cylinder
09 - Pistion
10 - Out Tube
11 - Bit Retainer Ring
12 - O Ring
13 - Drive Sub
GSE-DHD3.5 DTH Hammer
Out Diameter
GSE DHD3.5 DTH Hammer Length With Out Bits
Frequency at 18 Bar
80 mm
808 mm
32 Hz
Working Pressure
Air Consumption: M3(CBM)/min
8 bar - 30 bar
@10 bar
@18 bar
@24 bar
4.5
9.5
12.5
GSE-DHD340 DTH Hammer
Net Weight
38.00 kgs
Rec. Hole Size
108mm - 130mm
Out Diameter
GSE DHD340 DTH Hammer Length With Out Bits
Frequency at 18 Bar
99 mm
881 mm
31 Hz
Working Pressure
Air Consumption: M3(CBM)/min
8 bar - 30 bar
@ 10 bar
@ 18 bar
@ 24 bar
5
10.2
15
GSE-DHD350 DTH Hammer
Net Weight
74.0 kgs
Rec. Hole Size
134mm - 152mm
Out Diameter
GSE DHD350 DTH Hammer Length With Out Bits
Frequency at 18 Bar
126 mm
1028 mm
30 Hz
Working Pressure
Air Consumption: M3(CBM)/min
8 bar - 30 bar
@ 10 bar
@ 18 bar
@ 24 bar
7.5
14.7
19.5
GSE-DHD360 DTH Hammer
Net Weight
112 kgs
Rec. Hole Size
154mm - 254mm
Out Diameter
GSE DHD360 DTH Hammer Length With Out Bits
Frequency at 18 Bar
144 mm
1135 mm
28 Hz
Working Pressure
Air Consumption: M3(CBM)/min
8 bar - 30 bar
@ 10 bar
@ 18 bar
@ 24 bar
8.7
14.5
25
GSE-DHD380 DTH Hammer
Net Weight
180.0 kgs
Rec. Hole Size
203mm - 305mm
Please contact our sales team for more specifications.
Out Diameter
GSE DHD 380 DTH Hammer Length With Out Bits
Frequency at 18 Bar
182 mm
1228 mm
23 Hz
Working Pressure
Air Consumption: M3(CBM)/min
8 bar - 30 bar
@ 10 bar
@ 18 bar
@ 24 bar
12
26
35